Marey is always updating and trying to improve on their manuals and installation guides. Marey will soon be updating their installation manuals for the gas tankless water heaters. Please follow the installation manual when installing a Marey tankless water heater. You will also want to check local code as all local codes sometimes supersede the manufacturers recommendations. Below is a list of the venting required for the Marey gas tankless water heaters.
Venting Requirements
Marey GA16NGETL Power Gas 16L ETL - unit requires 3" stainless steel single wall sealed venting. This unit can be vented either vertically up through the roof or horizontally out the sidewall of the building. Please click on this link for 3" stainless steel venting and vent kits: 3" Stainless Steel Venting
Marey GA16NGDP Power Gas 16L with Digital Panel or without Digital Panel - unit requires 5" B-Vent galvanized double wall pipe. unit should be vented vertical up through the roof using the 5" B-Vent H/P VVT Vertical Vent Kit
Marey GA10LPDP Power Gas 10L with Digital Panel or without Digital Panel - unit requires 4" B-vent double wall galvanized venting.
Marey GA5LP Power Gas 5L - unit requires 4" B-vent double wall galvanized venting.
Marey GA5PORT Portable Gas 5L - this unit requires no venting.
GlobalTowne is an authorized Marey distributor of all the gas and electric tankless water heaters. Please call us at 888-726-9752 for questions or to order your Marey tankless water heater today.
If venting horizontally when in a basement near a wall, a thimble is still required with double wall pipe correct? water heater talk
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I have a 10L an will be venting it vertically using approx. 4 feet of B-vent. The top of the unit will be about 12inches from the ceiling (this is a camp bthrm) My ?? is: any idea how hot the B-vent pipe will be on the 12 inches of pipe coming off this unit ? Example-> maybe 200-250 degrees ????
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